Poly (vinyl alcohol) (PVOH), the partially hydrolysed
form of poly(vinyl acetate) (PVAc), is a complex
multicomponent polymer exhibiting a number of broad
molecular property distributions and is therefore somewhat
difficult
to characterise
by
analytical
techniques. Coupled column chromatography (CCC) is a
technique whereby such a complex polymer may be
characterised by cross-fractionation from one separation
method to another and may be performed using size
exclusion chromatography (SEC) and reversed phase
chromatography (RPC) to produce a molecular size
distribution superimposed onto a compositional vinyl
acetate (VAc) distribution. [Continues.
